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Photonic contact voltage sensor

Detection of Energized Structures with an Electro-Optic Field Sensor

Abstract
An electro-optic, solid-state electric field sensor system for non-contact detection of energized objects at power frequency (60 Hz) is investigated. In laboratory testing, the sensor system was found to have a minimum detectable field amplitude of about 1 mV/m/Hz1/2. In an experimental setup emulating the realistic scenario of an energized conducting structure (such as a street light or metal fence post), the detection of a 1-meter object energized at 1 VAC at a distance of 2 meters was demonstrated.

James E. Toney
Alfonso G. Tarditi
Peter Pontius
Andrea Pollick
Sri Sriram
Stuart A. Kingsley

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